Initial commit

conf/etc/systemd/system/dnsmasq.service.d/override.conf

@@ -0,0 +1,8 @@
+[Unit]
+# As the dnsmasq is configured("bind-interfaces" in /etc/dnsmasq.conf) to
+# run strictly on br0 interface and this interface is removed and then
+# recreate during the networking restart, then ensure that networking.service
+# restarts are propagated to dnsmasq.service so that the dnsmasq will
+# bind to new br0.
+PartOf=networking.service
+After=networking.service

conf/etc/systemd/system/hostapd.service.d/override.conf

@@ -0,0 +1,10 @@
+[Unit]
+# Hostapd adds the WNIC to bridge br0. As the restart of networking service
+# removes and recreates the br0 interface, then ensure that networking.service
+# restarts are propagated to hostapd.service so the hostapd will insert the
+# WNIC to new br0 bridge.
+PartOf=networking.service
+After=networking.service
+
+[Service]
+ExecStartPost=/sbin/bridge link set dev wlan0 hairpin on

conf/etc/systemd/system/igmpproxy.service.d/override.conf

@@ -0,0 +1,3 @@
+[Unit]
+PartOf=networking.service
+After=networking.service

conf/etc/systemd/system/isp-switch.service

@@ -0,0 +1,11 @@
+[Unit]
+Description=Switches v4 connectivity to mobile broadband backup
+After=network.target
+
+[Service]
+Type=simple
+Restart=always
+ExecStart=/usr/local/sbin/isp-switch
+
+[Install]
+WantedBy=multi-user.target

conf/etc/systemd/system/networking.service.d/override.conf

@@ -0,0 +1,6 @@
+[Unit]
+# Start dnsmasq, igmpproxy and hostapd services when
+# the networking service is started. dnsmasq, igmpproxy
+# and hostapd services are started once the networking
+# service has been started.
+Wants=dnsmasq.service igmpproxy.service hostapd.service